Added 10 October 2026 marshland noun Categories: NatureRare Words noun ! Definition from WordNet 3.1, Princeton University. More about marshland at Wordnik → Where our words come from → Low-lying wet land with grassy vegetation; usually is a transition zone between land and water. thousands of acres of marshland Origin From marsh + land. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: marshfenmorassquagmirebogmireswampwetlandswamplandpeatlandcarrmoor Back to today's word